Feed-water heater and purifier



(N0 Model.) 3 Sheets-Sheet 1.

J. G. COOPER. FEED WATER HEATER AND PURIFIER.

No. 514;8-14. Patnted Feb. 13,1894. .FWJ,

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No. 514,814. Patented Feb. 13, 1894.

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J. G. COOPER. FEED WATER HBATER- AND PURIFIBR.

No. 514,814. Patented f'eb. 13, 1894.

6%. Chavez we mmomu. LITHOGRAFHING carhPhNY JAMES G. COOPER, OFCINCINNATI, OHIO.

FEED-WATER HEATER AND PURIFIER.

SPECIFICATION forming part of Letters Patent No. 514,814., datedFebruary 13, 1894.

Applicationfiled March 30, 1893- Serial No. 468.356- (N0 model.)

To all whom it may concern.-

Be it known that I, JAMES G. COOPER, a citizen of the United States,residing at Cincinnati, in the county of Hamilton and State of Ohio,have invented new and useful Improvements in Feed-Water Heaters andPurifiers, of which the following is a specification.

This invention relates to an economical and reliable apparatus forheating, purifying and filtering water to be used in steam boilers andfor other purposes.

The objects of my invention are to provide in the base of afeed-waterheater an oil extracting chamber having an inlet for exhauststeam and inclosing a number of curved vertically arranged deflectingplates so disposed in upper and lower alternating series as to cause theincoming current of exhaust steam to be whirled around, over, under andbetween said plates in such manner that the cylinder oil will be rapidlyand thoroughly extracted from the exhaust steam and will drop to thebottom of the extracting chamber; while the cleansed exhaust steam willwhirl upward into a substantially annular space or heating chambersurrounding the settling and filtering chambers and thence pass indirect contact with or into the body of water in the.

settling chamber through a seal at its top, after which the steam ispermitted to escape in a circuitous course in contact with superposedand alternately arranged concave and convex deflecting plates over whichthe cold feed water is introduced in thin strata into the settlingchamber.

My invention has for a further object to combine with afloat operatedvalve-mechanism for automatically controlling the supply of water to thesettling chamber, a float chamber or casing so constructed that it willserve at the same time as an overflow device or passage for preventingan over accumulation of water in the settling chamber and as a trapagainst escape of exhaust steam except in contact with the deflectingplates over which water is supplied to the settling chamber.

Other objects of the invention are to provide for partly surrounding thesettling and filtering chamber or inner shell with an outer jacket orshell so constructed and arranged as to inclose and support the waterdeflecting plates above the open top'of the settling chamber; afford anearly annular space for passage of exhaust steam in contact with andinto the settling chamber; prevent or. greatly lessen loss of heat fromradiation; and at the same time permit all necessary pipe connectionswith the settling and filtering chambers to be made directly with theinner shell, requiring no cutting or pipe jointing of the outside shellfor such connections, thereby greatly lessening the expense and enablinga better joint to be made.

It is a further purpose of my invention to improve and simplify theconstruction and arrangement of the several parts of a feed water heaterand purifier in such a manner as to wholly avoid the objections usuallyincident to employment of exhaust steam as a heating medium.

To these ends my invention consists in the features of construction andnovel combinations of parts in a feed water heater and purifier ashereinafter described and claimed.

In the annexed drawings illustrating the invention-Figure l is asectional elevation of my improved feed water heater and purifier. Fig.2 is a vertical section of the settling and filtering chambers, taken ata right angle to Fig. 1. Fig. 3 is ahorizontal section of the upperportion of the settling chamber. Fig. 4 is a plan of the oil extractingchamber or base section of the heater and purifier. Fig. 5 is anelevation of said base section. Fig. 6 is an enlarged sectionalelevation of an automatically operated valve. and its chamber, forcontrolling the supply of water to the heater and purifier. elevation onthe line 7-7 Fig. 8, of a cornbined float chamber, overflow and steamtrap,

showing the float by which the water supply valve is automaticallyoperated. Fig. 8 is a horizontal section of the same on the line 8-8 ofFig. 7. Fig. 9 is a transverse vertical section of the same on the line99 of Fig. 8.

The heater and purifier comprises a base section 1, of cylindrical form,mounted on screw studs 2 by which the apparatus can be leveled. Theinterior of this base section 1 constitutes an oil extracting chamber 3into which exhaust steam from an engine cylinder is admitted through aninlet t in one side. Extended across the chamber 3 nearly from side toside and in front of the steam inlet 4 Fig. 7 is an enlarged sectionalis a series of vertically projecting and laterally curved deflectingplates 5 the concaved faces of which are preferably turned toward thesteam inlet. These plates are secured to the bottom of the chamber 3 ormay be cast integral therewith.

On the upper edge of the base section 1, at a point opposite the steaminlet 4, is formed a segmental inwardly projecting flange G that aifordsa point of attachment and support for an open top cylindrical shell 7,as shown in Fig. 1, the bottom of said shell being provided with acorresponding flange 8 through which it is secured bybolts 9 totheflange 6 of the base section. Theshell 7 is of less diameter than thebase section 1 and does notextend wholly across the same. On the bottomor" the sh ell 7 and dependingtherefromisaseriesot'laterallycurveddeflectingplates 10 that alternate with the corresponding deflectingplates 5 in the bottom of the oil extracting chamber. The deflectingplates 5 and 10 lap by each other as shown in Fig. 1 and are graduallyincreased in height or width from the steam inlet 4 to the opposite sideof the base section. One of the plates 10 may have its ends extendeddown to the bottom of the oil extracting chamber to assist in supportingthe shell 7, as shown in Fig. 1. To the top of the base section 1 issecurely bolted an outer shell 11 which surrounds the inner shell 7, ata distance there from, except at the rear where said inner shell isconnected to the flanged portion of the base section. Between the innershell 7 and outer shell 11 is thus formed a nearly annular space 12which communicates with the base section 1 into which steam is firstadmitted. The outer shell 11 is extended some distance above the innershell 7 and is provided with a cover 13 which may be removable. Near thetop of the shell 11, at a convenient point, is a steam outlet 14 and atanother point is located a water inlet pipe 15 having a perforated waterdistributor or spray device 16 on its inner end which projects withinthe space inclosed by the upper part of the shell.

Supported in any convenient manner within the upper part of the outershell 1l,above the open top of the inner shell 7 and below theperforated water distributer 16, is a series of alternately arrangedcones or convex deflecting plates 17 and concaved rings orannularconcaved deflecting plates 18 all of which are preferably made of thinsheet metal. By means of these deflecting plates 17 and 18 the waterwhich escapes in a spray from the perforated distributer 16 is spreadout in thin sheets and thus while passing downward from plate to plateis better enabled to absorb the heat of the exhaust steam with whichsaid plates are surrounded. The

under sides of the several deflecting plates being bathed with exhauststeam it is obvious that said plates will themselves become heated andthus assist in raising the temperature of the water flowing over them.

The

lowermost annular concaved deflecting plate 18 has suspended from itsunder side one or more rings 19 which project downward into the upperportion of the inner shell. There are preferably two of these rings 19,arranged concentrically and at different elevations, and the lowermostor inner ring is partly submerged in the water contained in the shell 7so as to form a water seal.

The shell 7 is divided by a central vertical partition 20 having anopening 21 in its upper part. By means of this partition the spaceinclosed by the shell 7 is divided into a settling chamber 22 located onone side of the partition and a filtering chamber 23 on the other side.The partition 20 does not extend the entire height of the shell 7, butonly about two-thirds, more orless. At its top the partition 20 isprovided with an inclined flange 21 and a similar flange 25 is formed onthe inside of the shell 7 above the filtering chamber. These flangessupport an inclined hood 26, Fig. 2, which forms a top or cover for thefiltering chamber and may be made of light sheet metal. The lower edgeof the hood or cover 26 has its central portion formed into a guardordefiector 27 which projects downward into the settling chamber 22 infront of the opening or passage 21, the said guard or deflector beingclosed in front and on both sides but open at the bottom to establishcommunication between the settling chamber and filtering chamber throughthe opening 21 in the intervening partition. l/Vithin the filter ingchamber 23 is a vertically arranged guard or deflector 28 which isextended nearly to the bottom of the shell 7 and is secured at the topto the under side of the hood or cover 26 and on each side to thepartition20 in such a manner as to occupy a position immediatelyopposite the opening 21 so that water entering the filtering chamberwill be caused to pass downward through and beneath said guard ordeflector before passing through the filtering material 29 with whichthe chamber 23 is supplied.

In one side of the upper portion of the filtering chamber is an openingfor connection with the suction pipe 30 of a pump, not shown,

through which purified and filtered water can be supplied to a steamboiler or be conveyed to a suitable receptacle for any required purpose.At its lower portion the shell 7 may be provided with a suitably closedman-hole or cleaning opening 31 communicating with the settling chamberand filtering chamber each of which may be also provided with blow offpipes 32 and 33 for cleansing purposes. All these connections are madedirectly with the inner shell 7 without intervention of the outer shell11 which is attached to vertical flanges 34, Fig. 3, on the rear of theinner shell in such manner as to afford the necessary extent of exposedsurface and yet permit the outer shell to constitute a practicallycomplete surrounding jacket and heating chamber for the inner shell andits contents. It

is obvious, also, that by this construction the making of the requiredjoints for pipe connections is greatly simplified and the expenselessened.

.The supply of water to be heated, purified and filtered isautomatically controlled by means of a vertically movable valve 35, Fig.6, inclosed in a suitable casing 36 which; communicates with theinterior of the upper portion of the heater and purifier. The valvecasing 36 is divided into two chambers by a horizontal centrallyporforated partition 37 which supports a\vertical cylindrical guideway38 that is extended the entire height of the upper chamber and projectsdownward partly into the lower chamber. In the upper-portion of thiscylindrical guideway 38 are lateral openings or ports 39 for passage ofwater into and through the valve 35 by which said ports are controlled.The valve 35 is cylindrical, open at both ends, and suitably connectedat its lower end with a rod or stem 40 through which it is operated. Theupper portion or chamber of the valve casing 36 has a lateral inlet neck4l for connection with a pipe or coupling 42, Fig. 1, through whichwater is supplied to the valve; and the lower portion or chamber of saidcasing is provided with a laterally projecting outlet neck 43 which issuitably coupled, through a perforation in the upper part of the shell11, with the inlet pipe 15 to which the perforated water distributer orspray device 16 is connected.

In the upper portion of the shell 7, at one side, is a laterallyprojecting recess or pocket 44 having two openings 45 and 46, one abovethe other, through which the upper portion of the settling chamber 22communicates with the float chamber 47, Figs. 7, 8, and 9, of a trappedoverflow device through which the position of the valve 35 to controlthe supply of water is governed by the level of the water in thesettling chamber. The fioat chamber 47' contains a ball float 48 that issecured to the lower end of the valve rod or stem 40 which rod isextended through stufling boxes 49 and 50 at the bottom of the valvecasing and top of the float chamber respectively. As shown in Figs. 7, 8and 9 the float chamber 47 is surrounded on threesides by a trap oroverflow chamber 51 having a central vertical partition 52 that isextended from the top of said chamber nearly to its bottom. In one sideof the upper portion of the float chamber 47 is an overflow opening 53through which water passes into the trap chamber 51 and beneath thelower edge of its partition 52 and thence to an overflow pipe or nozzle54 leading from an elevated part of the outer casing 55 of the trappedoverflow device. A glass water gage 56, Figs. 1 and 8, may be attachedto a convenient part of the overflow device as shown.

When the apparatus is in operation water is admitted through the valve35-and its casing 36 to the inlet pipe 15 of the perforated distributer16 by which it is sprayed onto the deflecting plates 18 and 19 so as tobe sprayed out thereon in thin sheets and descend gradually in acircuitous course into the settling chamber. Meanwhile either live steamor exhaust steam is admitted through the inlet 4 into the cylindricalbase section 1 which, as before described, is so constructed as toconstitute an oil extracting chamber and trap for anycylinder oil in theexhaust steam. By means of the curved interior walls of the cylindricalbase section a whirling motion is imparted tothe incoming steam and inpassing around and between the alternating deflecting plates 5 and 10the steam is rapidly separated from any cylinder oil that it may carry.The oil thus extracted from the steam collects in a circular groove 57,Figs. 1 and 4, by which it is conducted to a drain pipe 58 leading fromthe bottom of the base section. The steam, thus freed from oil, ascendsin whirling currents through the annular heating space 12 between theinner shell 7 and outer shell 11, thereby imparting its heatto theapparatus and raising the temperature of the water in the settling andfiltering chambers. At the top of the shell 7 the farther ascent of thesteam is obstructed by the lowermost annular concaved deflecting plate18 and depending rings 19 in such manner as to cause a portion of thesteam to enter the water in the settling chamber while another'portiontakes a circuitous course outward between the rings 19 and deflectingplates 17 and 18, thereby heating said plates, and finally escapes atthe outlet 14 leading from the upper part of the apparatus. As the waterin the settling chamber 22 rises to the level of the opening 21 in thepartition 20 it passes downward through the deflector guard 28 to thebottom of'the filtering chamber. By means of the guard or deflector 27depending in the settling cham ber 22 in front of the opening 21 anyfloating impurities are thrown down and prevented from entering thefiltering chamber 23, while the guard 28 affords a passage through whichthe water is conducted first to the bottom of the filtering material soas to ascend through the filter before escaping. When the level of thewater in the settling chamber is sufficiently high to cause a flowthrough the opening 45 into the float chamber 47 and lift the float 48the connected valve 35 willbe thereby carried into operative position toautomatically cont'rol the supply of water according to its varyinglevel in the settling chamber. As the water attains the level of theoverflow openings 46, 53 and 54 the trap or overflow chamber 51 willreceive a supply of water that will prevent any escape of steam in thatdirection and at the same time assist in maintaining a proper waterlevel in the apparatus.

The outlet pipe 30 of the filtering chamber the three way valve 59 isintheposition indicated in Fig. l the boiler, not shown, will receivewater from the filtering chamber 23 of the heater and purifier; but itis obvious that the valve may be turned in such direction as tocut offthe heater and purifier and give a direct feed of cold water to theboiler; or it may be so turned as to cut off the boiler and admit coldwater through the pipe 30 into the heater and purifier for flushingpurposes.

The advantage resulting from the construction and relative arrangementof the several parts of the apparatus will be obvious. It will beobserved that ample provision is made for freeing the exhaust steam,when used as a heatingmedium, from any cylinder oil that it may contain;the feed water is heated both by indirect contact and direct contactwith steam, thereby eifecting a large saving of heat; and the water isvery thoroughly relieved from impurities before being allowed to passfrom the apparatus to its intended use in feeding steam generators orfor other purposes.

What I claim as my invention is- 1. In a feed water heater and purifier,the combination of a cylindrical base section having a steam inlet, asettling chamber of less diameter than said base section and supportedthereon, means for supplying water to the settling chamber, an outershell or jacket surrounding the settling chamber or inner shell andforming an annular unobstructed heating chamber or space thatcommunicates with the cylindrical base section below and with thesettling chamber above, and alternating plates located in the basesection and constituting an oil extractor, whereby steam admitted to thebase section will traverse a horizontally tortuous course over theplates of the oil extractor and ascend in whirling currents through theheating chamber and enter the top of the settling chamber, substantiallyas described.

2. In a feed-water heater and purifier, the combination of a basesection having a steam inlet at one side, an open top settling chamberof less diameter than the base section and supported thereon, means forsupplying water to the settling chamber, an outer shell or jacketsurrounding the settling chamber and separated therefrom to provide anintervening heating chamber or space in open communication at its lowerend with the base section, and upper and lower alternating curved plateslocated in the base section and constituting an oil extractor, wherebysteam admitted to the base section will traverse a horizontall ytortuous course over the plates of the oil extractor and ascend inwhirling currents through the heating chamber or space into the top ofthe settling chamber, substantially as described.

3. In a feed water heater and purifier, the combination of a cylindricalbase section having a steam inlet and an oil outlet or drain pipe,alternating upper and lower series of deflecting plates supported insaid base section, a settling chamber supported above the base sectionand having an open top, an outer shell or jacket surrounding saidsettling chamber and forming an annular heating chamber or space whichcommunicates with the base section and with the open top of the settlingchamber, said outer shell being extended above the settling chamber andproyided near the top with a water inlet and a steam outlet, anddeflecting plates supported within the outer shell above the settlingchamber or inner shell, whereby the descending water and ascending steamare caused to pass in circuitous courses, substantially as described.

4. In a feed water heater and purifier, the combination of a cylindricalbase section pro vided with a steam inlet, a settling chamber or innershell of less diameter than said base section and having a flangedportion whereby it is supported thereon at one side, and an outer shellor jacket attached to the base section and to a vertically flangedportion of the inner shell, whereby a heating chamber is provided aroundthe inner shell and in communication with the base section and a portionof the settling chamber or inner shell left exposed for making pipeconnections without tapping the outer shell, substantially as described.

5. In a feed water heater and purifier, the combination with a basesection and an outer shell, of an inner open top shell havinga verticalpartition whereby the said inner shell is divided into a settlingchamber and a filtering chamber that communicate through an opening inthe upper part of the partition, a hood covering the filtering chamber,a guard or deflector depending from said hood into the settling chamberin front of the opening in the partition, and a guard or deflectordepending from the hood into the filtering chamber in rear of saidopening, substantially as described.

6. In a feed water heater and purifier, the combination with a settlingchamber or inner shell, and an outer shell or heating chambersurrounding and extended above the inner shell, of a perforated waterdistributor supported within the upper part of the outer shell, andalternating series of conical deflecting plates and concaved annulardeflecting plates supported intermediate the water distributor and theopen top of the inner shell or settling chamber, substantially asdescribed.

7. In a feed water heater and purifier, the combination of a basesection having a steam inlet, an open top inner shell or settlingchamber supported above said base section, an outer shell forming aheating chamber around the inner shell and in communication with thebase section and settling chamber, a water distributer supported withinthe upper part of the outer shell, alternating series of conicaldeflecting plates and concaved annular deflecting plates supportedintermediate the water distributer and open top of the settling chamber,andrings depending from the lowermost deflecting plate into the water inthe settling chamber to form a water seal, substantially as described.

8. In a feed water heater and purifier, the combination with a settlingchamber or inner shell, and an outer shell extended above the innershell and inclosing a heating chamber,

of a water inlet pipe, a valve casing communicating with said pipe andinclosing a valve for automatically controlling the supply of water tothe settling chamber, a trapped overflow chamber communicating with thesettling chamber at its water level and inclosing a float chamber, and aball float placed in said chamber and attached to the stemof the valve,substantially as described.

9. In a feed water heater and purifier, the combination with thesettling chamber and a water'inlet pipe, of a trapped overflow chambercomposed of a casing containing a float chamber communicating with thesettling chamber,

and an overflow chamber separated for a part of its height from thefloat chamber by a par- ,tition having an opening which places the upperportions of the float and overflow chambers in communication, a valvecasing communicating with the water inlet pipe, a valve inclosed in saidchamber to automatically control the supply of water to the settlingchamber, said valve provided with a rod or stem extended into the floatchamber of the trapped overflow, and a float attached to said rod or,valve stem, substantially as described.

10. In a feed water heater and purifier, the combination of an inneropen top shell inclosing a settling chamber and a filtering chamberwhich communicate at or near the top, an outer shell or jacket forming aheating chamber around the inner shell and extended above the same, awater inlet pipe leading into the upper part of said outer shell, avalve casing communicating with said pipe and inclosing a valve toautomatically control the supply of water, a trapped overflow chambercommunicating with the upper part of the settling chamber and inclosingafloat chamber, a float placed in said chamber and attached to the rodor stem of the water supply valve, a pipe leading from the filteringchamberand vprovided with athree-Way valve, and a pipe connecting saidthree-way valve with the water supply pipe, substantially as described.

In testimony whereof I have hereunto set my hand in presence of twosubscribing witnesses.

JAMES e. COOPER Witnesses:

JAMES J. MUIR, LIZZIE WELSH.

